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Anomalous Microwave Emission (AME) is a diffuse microwave component thought to arise from spinning dust grains, yet remains poorly understood. We analyze AME in 144 Galactic clouds by combining low-frequency maps from S-PASS (2.3 GHz),…

Anomalous microwave emission (AME) is a category of Galactic signals that cannot be explained by synchrotron radiation, thermal dust emission, or optically thin free-free radiation. Spinning dust is one variety of AME that could be…

星系天体物理 · 物理学 2018-09-19 Maximilian H. Abitbol , Bradley R. Johnson , Glenn Jones , Clive Dickinson , Stuart Harper

In the evolutionary path of interstellar medium inquiry, many new species of interstellar dust have been modeled and discovered. The modes by which these species interact and evolve are beginning to be understood, but in recent years a…

Anomalous microwave emission (AME) has been observed by numerous experiments in the frequency range ~10-60 GHz. Using Planck maps and multi-frequency ancillary data, we have constructed spectra for two known AME regions: the Perseus and Rho…

星系天体物理 · 物理学 2015-03-17 Planck Collaboration , P. A. R. Ade , N. Aghanim , M. Arnaud , M. Ashdown , J. Aumont , C. Baccigalupi , A. Balbi , A. J. Banday , R. B. Barreiro , J. G. Bartlett , E. Battaner , K. Benabed , A. Benoît , J. -P. Bernard , M. Bersanelli , R. Bhatia , J. J. Bock , A. Bonaldi , J. R. Bond , J. Borrill , F. R. Bouchet , F. Boulanger , M. Bucher , C. Burigana , P. Cabella , B. Cappellini , J. -F. Cardoso , S. Casassus , A. Catalano , L. Cayón , A. Challinor , A. Chamballu , R. -R. Chary , X. Chen , L. -Y Chiang , C. Chiang , P. R. Christensen , D. L. Clements , S. Colombi , F. Couchot , A. Coulais , B. P. Crill , F. Cuttaia , L. Danese , R. D. Davies , R. J. Davis , P. de Bernardis , G. de Gasperis , A. de Rosa , G. de Zotti , J. Delabrouille , J. -M. Delouis , C. Dickinson , S. Donzelli , O. Doré , U. Dörl , M. Douspis , X. Dupac , G. Efstathiou , T. A. Enßlin , H. K. Eriksen , F. Finelli , O. Forni , M. Frailis , E. Franceschi , S. Galeotta , K. Ganga , R. T. Génova-Santos , M. Giard , G. Giardino , Y. Giraud-Héraud , J. González-Nuevo , K. M. Górski , S. Gratton , A. Gregorio , A. Gruppuso , F. K. Hansen , D. Harrison , G. Helou , S. Henrot-Versillé , D. Herranz , S. R. Hildebrandt , E. Hivon , M. Hobson , W. A. Holmes , W. Hovest , R. J. Hoyland , K. M. Huffenberger , T. R. Jaffe , A. H. Jaffe , W. C. Jones , M. Juvela , E. Keihänen , R. Keskitalo , T. S. Kisner , R. Kneissl , L. Knox , H. Kurki-Suonio , G. Lagache , A. Lähteenmäki , J. -M. Lamarre , A. Lasenby , R. J. Laureijs , C. R. Lawrence , S. Leach , R. Leonardi , P. B. Lilje , M. Linden-Vørnle , M. López-Caniego , P. M. Lubin , J. F. Macías-Pérez , C. J. MacTavish , B. Maffei , D. Maino , N. Mandolesi , R. Mann , M. Maris , D. J. Marshall , E. Martínez-González , S. Masi , S. Matarrese , F. Matthai , P. Mazzotta , P. McGehee , P. R. Meinhold , A. Melchiorri , L. Mendes , A. Mennella , S. Mitra , M. -A. Miville-Deschênes , A. Moneti , L. Montier , G. Morgante , D. Mortlock , D. Munshi , A. Murphy , P. Naselsky , P. Natoli , C. B. Netterfield , H. U. Nørgaard-Nielsen , F. Noviello , D. Novikov , I. Novikov , I. J. O'Dwyer , S. Osborne , F. Pajot , R. Paladini , B. Partridge , F. Pasian , G. Patanchon , T. J. Pearson , M. Peel , O. Perdereau , L. Perotto , F. Perrotta , F. Piacentini , M. Piat , S. Plaszczynski , P. Platania , E. Pointecouteau , G. Polenta , N. Ponthieu , T. Poutanen , G. Prézeau , P. Procopio , S. Prunet , J. -L. Puget , W. T. Reach , R. Rebolo , W. Reich , M. Reinecke , C. Renault , S. Ricciardi , T. Riller , I. Ristorcelli , G. Rocha , C. Rosset , M. Rowan-Robinson , J. A. Rubiño-Martín , B. Rusholme , M. Sandri , D. Santos , G. Savini , D. Scott , M. D. Seiffert , P. Shellard , G. F. Smoot , J. -L. Starck , F. Stivoli , V. Stolyarov , R. Stompor , R. Sudiwala , J. -F. Sygnet , J. A. Tauber , L. Terenzi , L. Toffolatti , M. Tomasi , J. -P. Torre , M. Tristram , J. Tuovinen , G. Umana , L. Valenziano , J. Varis , L. Verstraete , P. Vielva , F. Villa , N. Vittorio , L. A. Wade , B. D. Wandelt , R. Watson , A. Wilkinson , N. Ysard , D. Yvon , A. Zacchei , A. Zonca

The Planck 28.5 GHz maps were searched for potential Anomalous Microwave Emission (AME) regions on the scale of $\sim3^{\circ}$ or smaller, and several new regions of interest were selected. Ancillary data at both lower and higher…

星系天体物理 · 物理学 2015-06-11 Yvette C. Perrott , Anna M. M. Scaife , Natasha Hurley-Walker , Keith J. B. Grainge

Anomalous Microwave Emission (AME) is a component of diffuse Galactic radiation observed at frequencies in the range $\approx 10$-60 GHz. AME was first detected in 1996 and recognised as an additional component of emission in 1997. Since…

The anomalous microwave emission (AME) still lacks a conclusive explanation. This excess of emission, roughly between 10 and 50 GHz, tends to defy attempts to explain it as synchrotron or free-free emission. The overlap with frequencies…

Anomalous Microwave Emission (AME) is a significant component of Galactic diffuse emission in the frequency range $10$-$60\,$GHz and a new window into the properties of sub-nanometre-sized grains in the interstellar medium. We investigate…

We employ an all-sky map of the anomalous microwave emission (AME) produced by component separation of the microwave sky to study correlations between the AME and Galactic dust properties. We find that while the AME is highly correlated…

星系天体物理 · 物理学 2016-08-17 Brandon S. Hensley , B. T. Draine , Aaron M. Meisner

Nearly twenty years after the discovery of anomalous microwave emission (AME) that contaminates to the cosmic microwave background (CMB) radiation, its origin remains inconclusive. Observational results from numerous experiments have…

星系天体物理 · 物理学 2015-11-20 Thiem Hoang

Anomalous Microwave Emission (AME) is an important emission component between 10 and 60 GHz that is not yet fully understood. It seems to be ubiquituous in our Galaxy and is observed at a broad range of angular scales. Here we use the new…

The anomalous microwave emission (AME) still lacks a conclusive explanation. This excess of emission, roughly between 10 and 50 GHz, correlates spatially with interstellar dust, prompting a "spinning dust" hypothesis: electric dipole…

Anomalous Microwave Emission (AME) has been previously studied in two well-known molecular clouds and is thought to be due to electric dipole radiation from small spinning dust grains. It is important to measure the polarization properties…

宇宙学与河外天体物理 · 物理学 2015-05-30 C. Dickinson , M. W. Peel , M. Vidal

Anomalous microwave emission (AME) is an important Galactic foreground of Cosmic Microwave Background (CMB) radiation. It is believed that the AME arises from rotational emission by spinning polycyclic aromatic hydrocarbons (PAHs) in the…

星系天体物理 · 物理学 2016-06-15 Thiem Hoang , Nguyen Anh Vinh , Nguyen Quynh Lan

The QUIJOTE-MFI Northern Hemisphere Wide-Survey has provided maps of the sky above declinations $-30^\circ$ at 11, 13, 17 and 19$\,$GHz. These data are combined with ancillary data to produce Spectral Energy Distributions in intensity in…

Context. Excess microwave emission, commonly known as anomalous microwave emission (AME), is now routinely detected in the Milky Way. Although its link with the rotation of interstellar (carbonaceous) nano-grains seems to be relatively well…

We observed four nearby spiral galaxies (NGC 3627, NGC 4254, NGC 4736 and NGC 5055) in the K band with the 64-m Sardinia Radio Telescope, with the aim of detecting the Anomalous Microwave Emission (AME), a radiation component presumably due…

We study the anomalous microwave emission (AME) in the Lynds Dark Nebula (LDN) 1780 on two angular scales. Using available ancillary data at an angular resolution of 1 degree, we construct an SED between 0.408 GHz to 2997 GHz. We show that…

星系天体物理 · 物理学 2020-05-06 Matias Vidal , Clive Dickinson , S. E. Harper , Simon Casassus , A. N. Witt

We have observed the HII region RCW175 with the 64m Parkes telescope at 8.4GHz and 13.5GHz in total intensity, and at 21.5GHz in both total intensity and polarization. High angular resolution, high sensitivity, and polarization capability…

Many studies of anomalous microwave emission (AME) have computed an AME emissivity to compare the strength of the AME detected in different regions. Such a value is usually defined as the ratio between the intensity of the AME at 1 cm and…

星系天体物理 · 物理学 2012-12-14 C. T. Tibbs , R. Paladini , C. Dickinson
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